Helix Ci7 C165.2FM-S3 6.5" 2-Way Hi-End Coax SpeakerDescription HELIX Ci7 C165. 2FM S3 Born out of the increasingly demanding challenges of modern automobile technology and the HELIX typical pursuit of intelligent solutions, we made the progressive redesign of proven universal speaker systems our mission. The result: our innovative HELIX COMPOSE platform that, according to the motto "developed inside the vehicle, for the vehicle", combines classic universal speakers with the advantages of vehicle

only 75 microns in diameter

Instruction Manual

ultra-low distortion

Enjoy the deepest blacks

Alpine Status HDA-V90 5-Channel Amplifier

Butyl Rubber Surround: Ensures durability and long-lasting performance

5 g Mechanical resistance Rms 1

59” Installation depth    60

making it versatile for a range of custom installations

it’s extremely efficient and reduces demand on your vehicle’s electrical system

punchy bass without distortion or compression

Low-Pass: 50Hz–250Hz @ 12dB/octave Butterworth